Force and Motion Review for test

Which would be used to describe how fast an object is moving?

• energy

• force

• motion

• speed

Tags

NGSS.MS-PS3-1

Jacob walked 30 minutes from his house to his grandmother’s house. After leaving his grandmother’s house, it took Jacob only 20 minutes to walk home.

What can be best concluded about Jacob’s walk home?

• He walked uphill going home.

• He walked at a constant speed in both directions.

• He walked downhill going home.

• He walked at a faster pace going home.

Sally is jogging in a park. The distance-time graph shows her motion.How much time did Sally take to move from point A to point B?

• 30 minutes

• 60 minutes

• 70 minutes

• 90 minutes

The graph shows the distance traveled by an object over time. How far did the object travel in 2 seconds?

• 2 m

• 4 m

• 6 m

• 8 m

Which affects the motion of an object?

• force only

• mass only

• both force and mass

• neither force nor mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A girl is playing with a basketball. The girl throws the basketball on the ground one time, it bounces back in the air, and then falls down again.

Why does the basketball come down again after it bounces into the air?

• It is pushed down by air.

• It is pulled down by gravity.

• It is attracted by the material of the road.

• It is pushed away by the material of her shoes.

Tags

NGSS.MS-PS2-4

An object is moving, and an unbalanced force is applied in the same direction in which the object is moving.

What happens to the object?

• It speeds up.

• It slows down or stops.

• It changes direction.

• It continues to move at the same speed and direction.

Tags

NGSS.MS-PS2-2

An object is moving, and an unbalanced force is applied in the opposite direction of which the object is moving.

Which happens to the object?

• It speeds up.

• It slows down or stops.

• It changes direction.

• It continues to move at the same speed and direction.

Tags

NGSS.MS-PS2-2

Two teams are playing tug of war. The ribbon tied in the middle of the rope is not moving.

What best explains the lack of movement?

• The two forces are in opposite directions and balanced.

• The two forces are in the same direction and balanced.

• The two forces are in opposite direction and unbalanced.

• The two forces are in the same direction and unbalanced.

Which statement is true about the effect of an unbalanced force on an object at rest?

• If an unbalanced force acts on an object at rest, the object will move in any direction.

• If an unbalanced force acts on an object at rest, the object will move in the same direction as the force.

• If an unbalanced force acts on an object at rest, the object will move in the opposite direction of the force.

• If an unbalanced force acts on an object at rest, the object will remain at rest

Tags

NGSS.MS-PS2-2